/*
 * MIT License
 *
 * Copyright (c) 2018 Alibaba Group
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.alibaba.android.rx.lifecycle;

import io.reactivex.functions.Function;
import io.reactivex.subjects.BehaviorSubject;

/**
 * Created by longerian on 2018/4/8.
 *
 * @author longerian
 * @date 2018/04/08
 */

public class LifeCycleProviderImpl<E extends LFEvent> implements LifeCycleProvider<E> {

    private final BehaviorSubject<E> lifecycleSubject = BehaviorSubject.create();

    private final Function<E, E> correspondingEvents;

    public LifeCycleProviderImpl(Function<E, E> correspondingEvents) {
        this.correspondingEvents = correspondingEvents;
    }

    @Override
    public void emitNext(E event) {
        lifecycleSubject.onNext(event);
    }

    @Override
    public <T> LifecycleTransformer<T> bindUntil(E event) {
        return LifeCycleHelper.bindUntilEvent(lifecycleSubject, event);
    }

    @Override
    public <T> LifecycleTransformer<T> bindToLifecycle() {
        return LifeCycleHelper.bindToLifeCycle(lifecycleSubject, correspondingEvents);
    }
}
